Roller Midge Screen | Double Door
SKU: RISDD-RISDDMIDGE
Our System 41 roller midge screen for double doors uses a genuine 20×30 thread weave across a twin cassette system — one cassette mounted to each side of the door, screens pulling to the middle and holding together via opposing magnetic strips. The only mesh count that reliably stops Highland midges across a wide door opening. Custom made to your exact measurements in our UK factory.
Genuine 20×30 midge mesh — stops midges that pass straight through standard 18×16 fly screen; the tightest standard mesh we offer
Twin cassette system — a cassette to each side of the door; each screen pulls independently to the middle of the opening
Magnetic centre closure — the two sliding bars hold together via opposing magnetic strips; no centre post, no visible hardware in the opening
Hides away completely — slimline 41mm cassettes sit discreetly against each side of the door, invisible when retracted
Spring loaded with internal braking — smooth, controlled retraction on each panel; no snap-back, no trapped fingers
Top and bottom guide rails — 30mm tall with brushpile seal; complete perimeter protection above and below the mesh
Sliding bolt option — one pair recommended to hold one sliding bar in place while the other closes against it; two pairs also available
Also available for single doors and windows — same 20×30 midge mesh across the full System 41 range
Custom made to your size — enter your measurements on the product page; recess fix or face fix
Screw fix only — no-drill is not available with midge mesh
5-year profile guarantee — aluminium cassettes and guides covered
Supplied to UK homes since 1994 — tried and tested across 30+ years
From £352.18
Delivery: 12 to 15 working days
Custom made in our UK factory Hand-built to your exact measurements — no trimming, no compromises
Open your door — even in midge season. Genuine 20×30 midge mesh across the full opening — the only weave that actually stops Highland midges.
Slimline. Tucked away out of sight when not in use. Two 41mm cassettes sit discreetly against each side of the door — barely visible when retracted.
Our System 41 roller fly screen — supplied to UK homes and businesses since 1994 Including MoD & US Air Force accommodation.
What our customers say
★★★★★
Finally — no more midges through the doorWe've had midge screens on our windows for years but always left the back door open regardless. Put one on the door this summer and it's transformed evenings in the kitchen. Genuine 20×30 mesh makes a real difference.
Chris from LeedsAugust 2024
★★★★★
Excellent quality — does exactly what it saysEasy to order and arrived well packaged. Fits perfectly and the quality is excellent. We're in the Highlands and this is the only mesh that actually keeps the midges out. Highly recommend.
Mrs T ForsterAugust 2023
★★★★★
Works brilliantly in a midge-prone areaWe're on the west coast of Scotland and midges are a serious problem from June through September. This screen has made a real difference to being able to use the back door in the evenings. Very pleased with the quality.
J ChaseAugust 2022
★★★★★
Ordered for windows and doors — all perfectOrdered midge screens for two windows and the back door. All fit perfectly and the quality is exactly what I expected. Simple to install and makes a huge difference through midge season.
Mrs BGMay 2021
20×30 Midge Mesh
The only weave that actually stops Highland midges.
Standard fly screen mesh lets midges through — the 18×16 weave is simply too open for Culicoides impunctatus, the Highland midge. Our 20×30 mesh has 20 threads per inch horizontally and 30 vertically, creating apertures small enough to stop midges reliably while still allowing fresh air through the full width of the opening. The same System 41 twin cassette system — select your mesh below.
Choose Your Mesh
20×30 midge mesh — the right choice if standard fly screens aren't working
If you're dealing with Highland midges or biting insects in rural or coastal areas, our 20×30 midge mesh is the most effective barrier. All four mesh types use the identical System 41 twin cassette system. Just select below.
Fly Screen MeshStandard fibreglass weave. Keeps out flies, wasps and common UK insects — not suitable for midges.18 × 16 threads/inchShop Fly Screen →
This productMidge MeshExtra-tight 20×30 weave — the only count that actually stops Highland midges and fine biting insects in rural and coastal areas.20 × 30 threads/inchYou are here →
Pet MeshSame insect-proof weave as standard — in a heavier, claw-resistant gauge for homes with cats or dogs.Heavy-gauge fibreglassShop Pet Screen →
Pollen MeshOur finest mesh — engineered for hay fever sufferers. Filters airborne pollen while still allowing fresh air through the full opening.Fine-weave pollen filterShop Pollen Screen →
Measure, Order & Install
Straightforward from start to finish
Most customers fit their roller midge screen in around 30 to 40 minutes. Here's how it works.
01
Measure Your Door Opening
Measure the full width and height of the double door opening. Download our Technical Specification (PDF) for dimensional guidance. A cassette is installed to each side of the door — the opening width determines how each panel is cut; the height determines the guide rail lengths.
02
Configure on the Product Page
Enter your measurements and choose frame colour (white, brown or anthracite grey). Select your fixing method — recess or face fix. We recommend adding at least one pair of sliding bolts, which lock one sliding bar in place so the other can close cleanly against it. A second pair is also available to secure both sides. Note: screw fix is required for all midge screen configurations — no-drill is not available with this mesh.
03
We Make It in Our UK Factory
Your midge screen is hand-built to your exact specification using genuine 20×30 midge mesh. Both cassettes, the top and bottom guides, and all closing components arrive cut to size and ready to fit. Download our Installation Guide (PDF) in advance — you'll need only a drill and screwdriver.
04
Pull Both Panels to the Middle
Grip the handle on each sliding bar and draw the screens towards the centre of the opening — the opposing magnetic strips on the two sliding bars pull together and hold the screens closed. Pull each handle back to retract — the spring-loaded cassettes draw the mesh back with a smooth, braked return.
Also Available
Midge screen for single doors and windows — same System 41
Need midge protection for single doors or windows as well? The same 20×30 midge mesh is available across the full System 41 range. Screw fix only throughout — no-drill is not available with midge mesh.
Stop midges getting through the door. Open it all summer.
Standard fly screen mesh lets midges through. Our roller midge screen for double doors uses a genuine 20×30 thread/inch weave across a twin cassette system — one cassette to each side of the door, screens pulling to the middle and holding together via opposing magnetic strips. The same proven midge protection, now covering the full width of a wide door opening.
Why Thread Count Matters for Midge Protection
A standard fly screen mesh has 18 threads per inch horizontally and 16 vertically — sufficient for flies, wasps and common UK insects, but midges are considerably smaller. Our 20×30 midge mesh has 20 threads horizontally and 30 vertically, creating apertures small enough to stop midges reliably. The finer weave reduces airflow and light transmission slightly compared to standard mesh — for anyone dealing with midge season, that is a trade-off worth making.
How the Twin Cassette System Works
Each cassette mounts vertically at one side of the door. The top and bottom guides run horizontally between the cassettes, housing the brushpile seal that prevents insects entering above and below the mesh. When you want to use the screens, draw each sliding bar from its cassette towards the centre. The two bars meet and hold together via opposing magnetic strips. To retract, pull each handle back — the spring-loaded cassettes draw the mesh in with a smooth, braked return.
Centre Closure — No Centre Post
The two screens close against each other at the centre of the opening. There is no fixed centre post — the full width of the door remains unobstructed when the screens are retracted, and when deployed there is no fixed structural element in the doorway.
The Sliding Bolt Option
An optional pair of sliding bolts can be added to one of the sliding bars, locking it into keepers fixed to the top and bottom guide. This holds one screen in the deployed position while the other is drawn across to close against it. A second pair of sliding bolts can be added to the opposite sliding bar, allowing both screens to be locked independently.
A Complete Seal Against Midges
Fine mesh alone isn't the full answer — midges will find any gap around the edges. The brushpile strips running along the top and bottom guides create a continuous seal along both horizontal edges when the screen is deployed. The opposing magnetic strips seal the two panels where they meet at the centre. Every screen is custom made to your exact measurements, so there are no gaps at the top, bottom or centre.
Screw Fix Only
The no-drill fixing option is not available with midge mesh — screw fix is required for all midge screen configurations.
Available in All Four Mesh Types
The double door System 41 screen is available with all four mesh options. Browse the other double door mesh types:
Custom Made in Our UK Factory
Every screen hand-built to your measurements. No trimming. Ready to fit.
5-Year Profile Guarantee
Aluminium cassettes and guides covered. Mesh replaceable independently.
Supplied to UK Homes Since 1994
30+ years supplying our System 41 roller fly screen to UK homes, businesses and public sector contracts.
Free UK Delivery
On orders over £149. Your screen arrives ready to install — nothing extra to buy.
FSA & EC Hygiene Approved
Compliant for commercial kitchens, food prep & catering environments.
- Blind Type:
- Roller Insect Screens
- Roller Fly Screen Door
- Operation: Handle Operated
- Screen Feature: Roller Screens
- Screen Application:
- Double Doors
- French Doors
- Fly Screen Type:
- Custom Sized
- Screw Fix
- Mesh Type:
- Insect Proof
- Midge Proof
- Frame Colour:
- White
- Anthracite Grey (RAL7016)
- Brown
- Made to Measure: Yes
- Self Assembly: No
| File Name | Size | Date | |
|---|---|---|---|
| Roller-Fly-Screen-Specification-Double-Door.pdfDownload | 302.29 KB | 04/11/2023 | |
| Instructions-Roller-Fly-Screen-Double-Door.pdfDownload | 390.48 KB | 04/11/2023 |
Roller Midge Screen for Double Door and Child Safety
Child Safe By Design - Handle on Sliding Bar: Roller Midge Screen for Double Door can be operated using discrete handle on the sliding bar. We call this ‘child safe by design’ as there are no looped cords or chains to operate the blind.
About Child Safety
At newblinds.co.uk, child safety is of paramount importance. If left hanging freely, chains and cords from blinds can pose a direct threat to children. For this reason, we are working towards all of our products being cord-less or chain-free and therefore “safe by design”.
Where it is not yet feasible to supply a product that is “safe by design”, we ensure that the product is fully compliant with Child Safety legislation. Not only do we ensure that, where necessary, our products are supplied/fitted with child safety cleats/devices, but we also supply, free of charge, these items to our previous customers.
Click the link above to inform us of your requirements. To learn more about the BBSA ‘Make it Safe’ campaign and blind cord safety, you can watch the video below.
